1 files changed, 71 insertions, 0 deletions
diff --git a/node_modules/webpack/lib/dependencies/RequireResolveDependencyParserPlugin.js b/node_modules/webpack/lib/dependencies/RequireResolveDependencyParserPlugin.js
new file mode 100644
index 000000000..09dd60788
--- /dev/null
+++ b/node_modules/webpack/lib/dependencies/RequireResolveDependencyParserPlugin.js
@@ -0,0 +1,71 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+"use strict";
+
+const RequireResolveDependency = require("./RequireResolveDependency");
+const RequireResolveContextDependency = require("./RequireResolveContextDependency");
+const RequireResolveHeaderDependency = require("./RequireResolveHeaderDependency");
+const ContextDependencyHelpers = require("./ContextDependencyHelpers");
+
+class RequireResolveDependencyParserPlugin {
+	constructor(options) {
+		this.options = options;
+	}
+
+	apply(parser) {
+		const options = this.options;
+		parser.plugin("call require.resolve", (expr) => {
+			return parser.applyPluginsBailResult("call require.resolve(Weak)", expr, false);
+		});
+		parser.plugin("call require.resolveWeak", (expr) => {
+			return parser.applyPluginsBailResult("call require.resolve(Weak)", expr, true);
+		});
+		parser.plugin("call require.resolve(Weak)", (expr, weak) => {
+			if(expr.arguments.length !== 1) return;
+			const param = parser.evaluateExpression(expr.arguments[0]);
+			if(param.isConditional()) {
+				param.options.forEach((option) => {
+					const result = parser.applyPluginsBailResult("call require.resolve(Weak):item", expr, option, weak);
+					if(result === undefined) {
+						parser.applyPluginsBailResult("call require.resolve(Weak):context", expr, option, weak);
+					}
+				});
+				const dep = new RequireResolveHeaderDependency(expr.callee.range);
+				dep.loc = expr.loc;
+				parser.state.current.addDependency(dep);
+				return true;
+			} else {
+				const result = parser.applyPluginsBailResult("call require.resolve(Weak):item", expr, param, weak);
+				if(result === undefined) {
+					parser.applyPluginsBailResult("call require.resolve(Weak):context", expr, param, weak);
+				}
+				const dep = new RequireResolveHeaderDependency(expr.callee.range);
+				dep.loc = expr.loc;
+				parser.state.current.addDependency(dep);
+				return true;
+			}
+		});
+		parser.plugin("call require.resolve(Weak):item", (expr, param, weak) => {
+			if(param.isString()) {
+				const dep = new RequireResolveDependency(param.string, param.range);
+				dep.loc = expr.loc;
+				dep.optional = !!parser.scope.inTry;
+				dep.weak = weak;
+				parser.state.current.addDependency(dep);
+				return true;
+			}
+		});
+		parser.plugin("call require.resolve(Weak):context", (expr, param, weak) => {
+			const dep = ContextDependencyHelpers.create(RequireResolveContextDependency, param.range, param, expr, options);
+			if(!dep) return;
+			dep.loc = expr.loc;
+			dep.optional = !!parser.scope.inTry;
+			dep.weak = weak;
+			parser.state.current.addDependency(dep);
+			return true;
+		});
+	}
+}
+module.exports = RequireResolveDependencyParserPlugin;